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G. W. PRENTIOE. Instrument for Setting Buttons.

No. 226,549. Patented April 13,1880.

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GEORGE W. PRENTIOE, OF PROVIDENCE, RHODE ISLAND.

INSTRUMENT FOR SETTING BUTTONS.

SPECIFICATION forming part of Letters Patent No. 226,549, dated April 13, 1880.

Application filed February 17, 1880.

To all whom it may concern Be it known that I, GEORGE W. PREN- TIOE, of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Setting-Instruments for Buttons; and I do hereby declare that the following is afull, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

My invention relates to certain improve ments in the construction of the set-tinginstrum entfor attaching buttons to shoes and wearing apparel for which Letters Patent were granted to David Heaton under date of February 23, "1875, numbered 160,056, and un der date of October 19, 1875, and numbered 168,994, to which reference may be had for a more thorough understanding of my present invention, which consists simply in a novel form of die arranged in the lowerjaw of the setting-instrument, whereby said instrument is adapted to set buttons having two, three, four, or more penetrating-prongs through the desired material, all aswill be hereinafter more fully described, and pointed out in the claim.

Referring to the drawings, Figure l represents a perspective view of a setting-instrument embodying my improvement; and Fig. 2 represents a plan view of the lower jaw of said instrument, showing form of die.

Similar letters of reference occurring on the several figures indicate like parts.

A represents the setting tool or instrument, having upper and lowerjaws, B O, which are operated by handles D E, in a manner well known. The upper jaw, B, is formed with a recess, F, opening from one side and extending nearly through the jaw, that portion forming the bottom being of a tapering or wedge shape in cross-section, and through the center of which extends a slot, G, said slot being concaved or arched in the face of the jaw to correspond with the shape of the connecting part of the fastening-prongs.-

The lower jaw, O, is provided with a die, K, of improved construction, and which is composed of two concaved grooves, H H, of equal length and arranged side by .side, and opening out from one side of the said jaw, as shown in the drawings.

It may be observed that in the construction of the setting-instruments now in use the dies in the lower jaws of the same are adapted to only set a given number of prongs, one die being arranged to set two prongs, another die to set three prongs, and so on in succession; but by means of my present simplified construction I am enabled to producea settinginstrument capable of setting buttons or studs having either two, three, four, or more prongs, thereby making the one instrument do the work of three different instruments as now constructed.

In the operation of attaching buttons or studs to shoes or other wearing-apparel, the button a, having attached thereto ametallic fastener, b, of ordinary construction, and provided with two, three, four, or more prongs, as the case may be, is placed in the slot G in the recess F of the upper jaw, leaving the prongs projecting downtoward the die K in the lowerjaw, as shown in the drawings. The parts now being in proper position, the material to which the button is to be attached is inserted between the two jaws, the prongs placed on the spot where the button is to be set, and by closing the jaws together the prongs are driven through the material and clinched smoothly upon the under side of the same, the points of the prongs being turned back again into the material by the dies H H, in a manner well known.

Having thus described my invention, what I claim as new and useful is In a setting-instrument, the die K, composed of the parallel concaved grooves H H, of equal length, and opening out from one side of the jaw, substantially as specified.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

GEORGE \V. PREN'IIGE.

Witnesses M. I. BLAKE, E. FISHER. 

